Have Proper Revisions - It is important to have a thorough revision of all three subjects - Physics, chemistry and mathematics.
Mock Tests - The best way to analyse your understanding of each subject is by taking mock tests and noting down your weak points.
Focus on Important Topics - Although it’s important to study the full subject, you can focus more on the high-weighted topics.
Previous Years Papers - Go through the previous years question papers to understand the pattern of the examination.
Create a Time table - Create a proper timetable for yourself and have enough time for all subjects with enough time to rest.
Focus on Stress - Learning to manage your stress is crucial to succeed in your exam. Yoga, meditation or physical activity can help.